Mumbai: A 70-year-old man was on Thursday arrested for allegedly having unnatural sex with a 13-year-old girl after a common acquaintance saw the video-clip of the act on his lost mobile phone, police said. Accused Niyaz Ahmed Hassan Raza, a trustee of a local mosque who used to teach Arabic, was apprehended from Shivajinagar for allegedly sexually abusing the girl student a month ago and filming it, they said.

According to police, Raza committed the crime after he took the victim to the first floor of the complex housing the mosque on the pretext of giving some fresh text. The incident came to light after Raza lost his mobile three-four days ago. It was found by a local resident who is known to both Raza and the father of girl.

While browsing, he came across the clip and informed the parent following which they lodged a police complaint. Raza has been booked under for Section 377 (Unnatural offences). The girl will be undergoing medical tests and further investigations are on, police added.

The accused had filmed the sexual abuse and saved it in his mobile phone.